These kinds of issues cause a negative feeling towards the product in the user. They keep using the product even after having seen a badly auto translated review from a language they speak or all these other things, but they now have a little bit more resentment towards the product. It makes them a bit more likely, over time, to switch to a competitor. Maybe they vent to a friend a month later and the friend suggests giving Apple Maps a try.
How do the metrics you speak of capture these subtle, delayed effects?
My point is that they don't capture the effects you describe - unless designed in. There is little motivation to do that though because they can track larger effects which are aligned with current leadership priorities. That's why I included the part about the PM that has recognized the problem.
I can guarantee you that the class of problem you describe has been discussed at the individual contributor level, so is known to some extent. Getting it from recognition to action is the problem. It is a huge lift to get some of these small things through the gauntlet to execution. Meanwhile, as you say, competitors with taste and attention to detail are building a better product.
This is very much a problem of large organizations. Those same PMs at a small company. If Google Maps was an independent company, the impediments would be fewer and priorities more aligned with building the best Google Maps.
How do the metrics you speak of capture these subtle, delayed effects?